President Donald Trump waived key Russia-related US sanctions and tariffs days before they were to take effect under a law he signed last month, including duties on the Russian goods and penalties for buying its oil and gas.In an executive order released by the White House on Friday, Trump said the waiver was in the national interests of the United States.The law is meant to increase pressure on Russia for its invasion of Ukraine that began in 2022. Trump, however, has been warming toward Russ...